5–6mm Thermal Packages — Temperate Water Coverage

5mm is where a wetsuit stops being a convenience and starts being the thing that determines how long your dive lasts. In water between roughly 19°C and 24°C, a 3mm suit leaves most divers surfacing early; a 5mm system with a proper hood, gloves, and boots lets you dive the full tank.

It's also the most common thickness for divers in temperate regions — the Pacific Northwest in summer, Northern California, the Mediterranean outside peak season, and much of the UK and Northern Europe in warmer months. At DiveCatalog.com we carry 5–6mm packages from Bare and Scubapro as an authorized dealer for both.

The 5–6mm Package Range

• Bare Revel 5mm and Bare Reactive 5mm — men's
• Bare Velocity Ultra 2.0 5mm — men's premium
• Bare Elate 5mm and Bare Evoke 5mm — women's
• Bare Nixie Ultra 5mm — women's premium
• Scubapro Definition 5mm — men's and women's, Body Map System 3D cut
• Scubapro Everflex Yulex 5/4mm — men's and women's, plant-based Yulex construction
• Scubapro Sport Steamer 5mm — women's

Why the Full System Matters More at This Thickness

At 3mm you can get away with mismatched accessories. At 5mm you can't. If you're diving water cold enough to need 5mm on your torso, thin gloves will have your hands too cold to operate a clip within twenty minutes, and no hood means you'll be losing heat through your head faster than the suit can compensate for.

This is the practical argument for buying a package rather than a suit alone — the hood, gloves, and boots included here are rated for the same conditions as the suit, so the system doesn't have a weak point.

Temperature Range

5–6mm suits generally suit water between 19°C and 24°C (66–75°F). Toward the cooler end, or on dives over 45 minutes, some divers move to 7mm. Toward the warmer end, particularly on short dives, 3mm may be sufficient.

Watch for thermoclines. Surface temperature can read comfortably in 3mm territory while the water below 15 metres is 5–6°C colder — and you'll spend most of the dive down there.

What 5/4mm Means

Suits listed as 5/4mm use 5mm neoprene across the torso and 4mm at the arms and shoulders, preserving core warmth while keeping shoulder mobility better than a uniform 5mm suit would.

Why Buy 5–6mm Packages from DiveCatalog.com?

• Authorized dealer for Bare and Scubapro — genuine products, full manufacturer warranty
• Matched systems — hood, gloves, and boots rated for the same water as the suit
• Expert sizing advice — send us your measurements and we'll confirm the fit
• Fast shipping — in-stock items ship within one business day
• Easy returns — if sizing isn't right, exchanges are straightforward
• Rewards program — earn points on every purchase

Frequently Asked Questions

Do I really need the hood at 5mm?

In most 5mm conditions, yes. Head heat loss is substantial, and it's the difference between a comfortable 50-minute dive and cutting it short at 35. It's also the cheapest component in the package, which makes skipping it a poor trade.

How do I account for a thermocline?

Plan for the temperature at your working depth, not the surface. A 10°C drop below a thermocline is common, and since you'll spend the bulk of the dive below it, that's the number that matters. When in doubt, dive the warmer suit.

Is 5mm too warm for a summer trip?

It can be uncomfortable on the surface in hot weather, but it's easier to be warm on a boat than cold at depth. If your destination water is genuinely 26°C or above, a 3mm is the better fit.

Will my fins fit over 5mm boots?

Check before ordering. Open heel fins are sized to the boot, and a 5mm boot is noticeably bulkier than a 3mm one. Fins sized for thin booties often won't close properly over cold-water boots.

Browse the full 5–6mm collection above, or see all Thermal Packages.